Home / 120,411.18-166,165.22-66,696.03

Finding the Fourth Proportional to 120,411.18, 166,165.22 and 66,696.03

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Solution

The fourth proportional to 120,411.18, 166,165.22 and 66,696.03 is: 92,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,411.18 : 166,165.22 = 66,696.03 : x
  2. Step 2: Convert to fraction form
    120,411.18/166,165.22 = 66,696.03/x
  3. Step 3: Cross multiply
    120,411.18x = 166,165.22 × 66,696.03
  4. Step 4: Simplify right side
    120,411.18x = 11,082,560,664.82
  5. Step 5: Solve for x
    x = 11,082,560,664.82/120,411.18
  6. Step 6: Final answer
    x = 92,039.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.